Create a new TargetSelectionDAGInfo class. This will eventually acquire

SelectionDAG-specific parts of TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101537 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Target/TargetSelectionDAGInfo.h

@@ -0,0 +1,36 @@
+//==-- llvm/Target/TargetSelectionDAGInfo.h - SelectionDAG Info --*- C++ -*-==//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares the TargetSelectionDAGInfo class, which targets can
+// subclass to parameterize the SelectionDAG lowering and instruction
+// selection process.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_TARGETSELECTIONDAGINFO_H
+#define LLVM_TARGET_TARGETSELECTIONDAGINFO_H
+
+namespace llvm {
+
+//===----------------------------------------------------------------------===//
+/// TargetSelectionDAGLowering - Targets can subclass this to parameterize the
+/// SelectionDAG lowering and instruction selection process.
+///
+class TargetSelectionDAGInfo {
+  TargetSelectionDAGInfo(const TargetSelectionDAGInfo &); // DO NOT IMPLEMENT
+  void operator=(const TargetSelectionDAGInfo &);         // DO NOT IMPLEMENT
+
+public:
+  TargetSelectionDAGInfo();
+  virtual ~TargetSelectionDAGInfo();
+};
+
+} // end llvm namespace
+
+#endif

lib/CodeGen/SelectionDAG/CMakeLists.txt

@@ -20,6 +20,7 @@ add_llvm_library(LLVMSelectionDAG
   SelectionDAGISel.cpp
   SelectionDAGPrinter.cpp
   TargetLowering.cpp
+  TargetSelectionDAGInfo.cpp
   )
 
 target_link_libraries (LLVMSelectionDAG LLVMAnalysis LLVMAsmPrinter LLVMCodeGen)

lib/CodeGen/SelectionDAG/TargetSelectionDAGInfo.cpp

@@ -0,0 +1,21 @@
+//===-- TargetSelectionDAGInfo.cpp - SelectionDAG Info --------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This implements the TargetSelectionDAGInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Target/TargetSelectionDAGInfo.h"
+using namespace llvm;
+
+TargetSelectionDAGInfo::TargetSelectionDAGInfo() {
+}
+
+TargetSelectionDAGInfo::~TargetSelectionDAGInfo() {
+}